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Design and Synthesis of a Fluorescent Probe Based on Copper Complex for Selective Detection of Hydrogen Sulfide
Journal of Sensors ( IF 1.4 ) Pub Date : 2021-02-16 , DOI: 10.1155/2021/8822558
Guanglan Mao 1 , Chenxi Liu 2 , Nan Yang 2 , Linlin Yang 2 , Guangjie He 2
Affiliation  

A novel fluorescence probe NA-LCX was rationally designed and synthesized for the sequential recognition of Cu2+ and H2S by the combination of hydroxyl-naphthalene and diformylphenol groups. The response properties of NA-LCX for Cu2+ ions and H2S with “on-off-on” manner were investigated by fluorescence emission spectra. A highly selective and sensitive response of complex NA-LCX-Cu2+ for H2S over other competing amino acids was observed with a limit of detection at 2.79 μM. The stoichiometry of NA-LCX toward Cu2+ ions was determined to be 1 : 1 by the UV-Vis absorption spectrum, and the coordination configuration was calculated by density functional theory (DFT) calculations. Moreover, probe NA-LCX was applied successfully for the recognition of Cu2+ ions and H2S in living cells.

中文翻译:

基于铜配合物的选择性检测硫化氢荧光探针的设计与合成

一种新的荧光探针NA-LCX被合理地设计和用于顺序识别的Cu合成2+和H 2被羟基萘和二甲酰基苯酚基团的组合S上。通过荧光发射光谱研究了NA-LCX对Cu 2+离子和H 2 S“开-关-开”方式的响应特性。复杂的NA-LCX-Cu构成的高选择性和灵敏的响应2+用于h 2与检测限观察到S以上其他竞争氨基酸在2.79  μ M.朝向铜NA-LCX的化学计量2+通过UV-Vis吸收光谱确定离子为1:1,并且通过密度泛函理论(DFT)计算来计算配位构型。此外,探针NA-LCX是为识别的Cu成功地应用于2+离子和H 2在活细胞中S上。
更新日期:2021-02-16
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